Description
Spring return direct coupled actuators (DCA) for on/off damper control with an integral junction box. The actuator accepts an on/off signal from a single-pole, single-throw (SPST) controller. They are designed to operate reliably in smoke control systems requiring Underwriter's Laboratories Inc. UL555S ratings up to 350 F.

Features
  • Integral spring return. No audible noise during holding.
  • Electronic circuitry provides efficient operation while eliminating the need for limit switches.
  • Ninety-five degree angle of rotation for tight damper closure.
  • Die-cast aluminum housing.
  • Housing design allows flush mounting to damper.
  • Integral junction box with three conduit openings eliminates need for separate wiring box.
  • Mounts to 3/8 or 1/2 in. round or square shaft.
  • High-temperature indicator included.


Specifications
  • Actuator Type: Damper
  • Application Type: Fire and Smoke
  • Torque/Force (lb-in., lbf): 30 lb in
  • Torque/Force (Nm, N): 3.4 Nm
  • Fail Safe Mode: Spring Return
  • Control Signal: Two position, SPST
  • Supply Voltage: 120 Vac + or ? 10%
  • Number of Internal Auxiliary Switches: 0
  • External Aux. Switches Available: Yes, 32003532-005
  • Shaft Adapter Type: Aluminum Hub, two set screws
  • Spring Return Torque/Force (lb-in., lbf): 30 lb-in
  • Spring Return Torque/Force (Nm, N): 3.4 Nm Maximum Stall Torque/Force (lb-in., lbf): 150 lbs-in
  • Maximum Stall Torque/Force (Nm, N): 17 Nm
  • Minimum Driving Torque at 350 F (lb-in.): 30 lbs in
  • Mounting: Direct Coupled
  • Frequency: 60 Hz
  • Rotational Stroke: 95 ±3 degrees
  • Spring Return Direction: CW
  • Timing, Maximum Spring Return (sec): 15 Sec
  • Timing, Nominal Driving @ 60 Hz (sec): 18 Sec
  • Timing, Maximum Driving @ 60 Hz (sec): 25 Sec
  • Dimensions: 7.5 in high x 5.13 in wide x 3.32 in deep
  • Compatible Damper Shafts (in.): 3/8 to ½ Square or Round
  • Temperature Range, Ambient (F): 0 to 130 F
  • Temperature Range, Storage (F): -40 to 140F
  • Operating Humidity Range: 5 to 95% RH, non-condensing
  • Maximum Noise Rating, Driving (dB(A) @ 1m): 65
  • Maximum Noise Rating, Holding (dB(A) @ 1m): 20 (no audible noise)
  • Environmental Rating: NEMA1
  • Comments: Integral junction box with three 7/8 in. conduit openings (fittings not included)
Read more
Manuals (1)
Specs
Actuator Type:
Two Position
Voltage:
120v
Torque:
30 lb-in
Fail Safe Mode:
Spring Return
Product Type:
Actuator
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